Focus Features says it has acquired the North American rights to Charlize Theron's film "Tully."
It co-stars Mark Duplass, Ron Livingston and Mackenzie Davis.
"'Tully' tells the story of Marlo, a mother of three including a newborn, who is gifted a night nanny by her brother," a plot synopsis said.
"Hesitant to the extravagance at first, Marlo comes to form a unique bond with the thoughtful, surprising, and sometimes challenging, young nanny named Tully."
Theron, Reitman and Cody previously collaborated on the 2011 film "Young Adult."
Before that, Reitman and Cody made 2007's "Juno" and 2009's "Jennifer's Body."